Saddle Point

The models, running

Nine engines

One model from each engine chapter, built to be turned by hand. Set the parameters, read the value, and open the certificate: the exact numbers that prove the answer, in the same arithmetic the book uses. At the book's base parameters the engine reproduces the book's numbers; the check is part of the site's build.

  1. Chapter 0 · Mathematical Foundations The saddle point Why does a two-by-two game have a value, and what does a mixed strategy guarantee?
  2. Chapter 1 · Observation, Beliefs, and Decision What a signal is worth When does a risk signal change a decision, and how much is it worth at each prior?
  3. Chapter 2 · Competing for Allocation: The Blotto Game Blotto How should a fixed budget be spread across contested fields against an adversary?
  4. Chapter 3 · Bargaining, Commitment, and Repeated Cooperation The forgiving trigger How patient must two sides be for cooperation to survive noisy monitoring?
  5. Chapter 4 · Signals, Disclosure, and Persuasion Persuasion by design What can a committed test-designer make a sceptical audience believe?
  6. Chapter 6 · Leadership and Rules: Inspection Inspection with a noisy signal How often must an inspector check to deter, and what is the burden of deterrence?
  7. Chapter 8 · Many Agents Learning to play Does the average of best replies become unexploitable, and what certifies it?
  8. Chapter 9 · Networks, Dependence, and Resilience Flow and cut How much can pass through a network, and what limits it?
  9. Chapter 10 · Aggregating Information Proper scoring Which scores make an honest forecast the best forecast?